preusse



(No Model.) 2 Sheets-Sheet 1.

O. E. PREUSSE.

BOOK STAPLING MACHINE.

No. 399,555. Patented Mar. 12, 1889.

JM WM QULto/LvL-m /M lhviTEn dTriTEs PATENT @EEicE.

CARL ERNST PREUSSE, OF REUDNITZ, LEIPSIC, SAXONY, GER-MANYBOOK-=STAPLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 399,555, dated March12, 1889.

Application filed May 5, 1887. Serial No. 237,298. (No model.)

Patented in Germany January 26, 1886, No. 36,510, and May To all whom,it may concern-.-

Be it known that I, CARL ERNST PnEUssE, a subject of the King of Saxony,Germany, residing at the city of Reudnitz, Lcipsic, in the Kingdom ofSaxony, Germany, have invented certain new and useful. Improvements inBook-Stapling Machines,(fr which Letters Patent have heretofore beengranted. to me in Germany, dated Januz'iry 26, 1886, 36,510, and May 18,1880,1(0. 37,744 of which the following is a specification.

This invention relates to certain new and useful improvements in thebook stapling ma chine for wnich United States Letters Patent No.298,117 were issued to me on the (5th day of May, 188i; andthisinvention relates especially to the mechanism for shifting the wire,the construction of the operating-lever and the block, mandrel, or dieover which the pieces of wire are bent.

The invention consists in the combination, with the driver-slide, ofimproved mechanism for feeding the wire for shifting the mandrel and thehand-lever for operating the machine.

The invention also consists in the construction and combination of partsand details, as will be fully described and set forth herein.- after,and finally pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of myimproved bookstapling machine. Fig. 3 is a front elevation of thedriver-slide and wire-shifter, parts being in section- Fig. 11; is aside view of the same. Fig. 71': is a front view of the same, showingthe parts in different positions, parts being in section. Figs. 5, (i,and '7 are detail front views of the same, parts being broken out andothers in section. Fig. 8 is a detail front view of the cutter andshaper. Fig. 5) is a side view of the same. Fig. 10 is a perspectiveview of a modification. of my improved machine. Fig. ll. is afront endview of the same, parts being in section. Fig. 12 is a front view of thesame, the parts being in different positions and some being in section.Figs. 13 and ll are detail. front views of the driver-slide, cutter, andfeeder in different positions, parts being in section.

Similar letters of reference indicate corresponding parts.

The driver-slide and the devices for cutting and bending the wire areconstructed the same as in my patent, No. 298,117, referred to above.

The wire is fed by the following mechanism: lVhen the machine iselosedtl1at is, when it has just driven a staplethe feederslide a hasthe position shown in Figs. i and 5. If the machine is openedthat is,started to make and drive a fresh staple'the driverslide 1) rises andraises the link 0, pivoted to the top of the driver-slide Z), the lowerend of said link being provided with a slot through which a pinv on oneend of a pivoted anglelever, ("1-, passes, a pin on the opposite end ofsaid angle-lever passing into slot in a campiece, (2, pivoted to jaws onthe top of the feederslide a, over which slide the wire is passed. Theslide Q is provided with two blades, n, which serve to out 01f the wire,and also to bend the same over the die, block, or mandrel 2', which ispressed by two springs,f, into the slot. for the driver-slide in theplate b. The slide Q. is provided with a notch or recess for receivingone end of the angle-leverp, pivoted on arms of the fixed frame, andprovided in its upper end with a pin which passes into an inclined slot,3 of an arm, 3 on the driver-slide Z). The slide Q is provided with adownwardlyprojecting fork, 1', having its lower ends beveled to act onbevels 7.: ofthe block or man drel r.

The curved lever A is pivoted at o, and to its lower end, at the frontof the machine, the handle-sectimi A is pivoted, which is heldapproximately in line with the lower shank of the lever A by the springThe clinching-anvil g, which serves to press over or clinch the ends ofthe staple, is drawn downward by a spring, \V, secured to a pin on theanvil and a fixed pin on the frame, and pressed upon an end of ashortlever, f, pivoted on the frame of the machine, the other end ofsaid lever being below the handle part A of the lever A.

The operation is as follows: The ascending driverslide Z) moves thefeed-slide (i to the right, and at the same time the cam-lever e isinclined, so that its cam. end (lees not grip the wire passed over theslide. The descending driver-slide b swings the cam-lever 6 into avertical position, so that its cam end firmly grips the wire on theslide a, which is moved -to the right, thereby feeding the wire underthe cutter, whereby the wire is cut and bent over the mandrel to form aU-shaped staple. The beveled ends of the fork 'L', acting on the bevels7c of the mandrel 9", force said mandrel out of the path or slot for thedriver-slide in the plate 13, so as to permit said driver to act 011 thestaple. Vhen the slide Q rises, the springs f press the mandrel 7' backinto the path of the driver-slide, ready for forming the neXt staple.

The machine is operated by pressing down thehandle-piece A of the leverA. The spring 8 is of such power that when the handle A is pressed downsufficiently to cut the wire, form the staple, drive it through thepaper, &c., said spring does not permit the handle A to turn on itspivot; but when more power is exerted the handle part A turns down onits pivot and bends the springs, and at the same time said handle part Aacts on one end of the lever t, causing the other end to force upwardthe clinching-anvil g, the upperend of which clinches the ends of thestaple that has been forced through the paper.

In place of providing the construction shown in Figs. 1 to 6 for feedingthe wire, the construction shown in Figs. 10 to 14 may be used. Itconsists of a lever-plate, M, pivoted on the end of the machine andhaving a slot, b into which a pin, 1), on the driver-slide is passed,whereby said lever-plate M is swung on its pivot m. Lugs on the plate Mact on the pin on the angle-lever (Z, and said plate M also operates theslide Q.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a book-stapling machine, the combination, with adriver-slide, of a wire-feeding slide, a cam-piece on said feeder-slide,and mechanism, substantially as herein shown and described, connectingsaid cam on the feederslide with the driver-slide, substantially as setforth.

2. In a book-stapling machine, the combination, with a driver-slide, ofa slide having blades, a mandrel provided with bevels, a fork on theslide having the blades, which fork has beveled ends that act on thebevels of the mandrel, springs for holding said mandrel, and mechanismfor operating the slide having the blades from the driver-slide,substantially as herein shown and described.

3. In a book-stapling machine, the combi nation, with a driver-slide, ofa wire-feeder slide, a cam-piece on said feeder-slide, a slide havingblades, a mandrel, a slide having blades and fork with beveled endsacting on the mandrel, springs for holding the mandrel, mechanism foroperating the feeder-slide from the driver-slide, and mechanism foroperating the slide having the blades from the driverslide,substantially as herein shown and described.

4. In a book-stapling machine, the combination, with mechanism fordriving staples, of a lever for operating the said mechanism, a handlepart pivoted on said lever, a spring held on the lever and handlesection, a pivoted lever having one end below said handle part, and asliding anvil resting on the other end of said lever, substantially asherein shown and described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses. A

CARL ERNST PREUSSE.

